https://github.com/torvalds/linux
Revision d5d2d2eea84b0d8450b082edbc3dbde41fb8bfd8 authored by Cliff Wickman on 07 June 2012, 13:31:40 UTC, committed by Ingo Molnar on 08 June 2012, 09:48:28 UTC
The SGI Altix UV2 BAU (Broadcast Assist Unit) as used for
tlb-shootdown (selective broadcast mode) always uses UV2
broadcast descriptor format. There is no need to clear the
'legacy' (UV1) mode, because the hardware always uses UV2 mode
for selective broadcast.

But the BIOS uses general broadcast and legacy mode, and the
hardware pays attention to the legacy mode bit for general
broadcast. So the kernel must not clear that mode bit.

Signed-off-by: Cliff Wickman <cpw@sgi.com>
Cc: <stable@kernel.org>
Link: http://lkml.kernel.org/r/E1SccoO-0002Lh-Cb@eag09.americas.sgi.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
1 parent bd2753b
History
Tip revision: d5d2d2eea84b0d8450b082edbc3dbde41fb8bfd8 authored by Cliff Wickman on 07 June 2012, 13:31:40 UTC
x86/uv: Fix UV2 BAU legacy mode
Tip revision: d5d2d2e
File Mode Size
Documentation
arch
block
crypto
drivers
firmware
fs
include
init
ipc
kernel
lib
mm
net
samples
scripts
security
sound
tools
usr
virt
.gitignore -rw-r--r-- 1014 bytes
.mailmap -rw-r--r-- 4.3 KB
COPYING -rw-r--r-- 18.3 KB
CREDITS -rw-r--r-- 92.7 KB
Kbuild -rw-r--r-- 2.5 KB
Kconfig -rw-r--r-- 252 bytes
MAINTAINERS -rw-r--r-- 207.5 KB
Makefile -rw-r--r-- 46.0 KB
README -rw-r--r-- 17.3 KB
REPORTING-BUGS -rw-r--r-- 3.3 KB

README

back to top